Special Purpose Fuses
LA50QS Semiconductor Fuses
500 VAC • Very Fast Acting • 35 – 1200 Amperes
In response to new equipment requirements, Littelfuse LA50QS series fuses were developed to improve the overall performance of semiconductor fuses. The LA50QS provides the best protection features including lower I2t, longer life when subjected to cyclic loading and lower watts loss. LA50QS is today’s choice for the protection of dynamic solid state equipment.
Features
• • • • • Lowest I2t for greatest protection of semiconductor circuits. Low watts loss for cooler operation. Superior cycling ability gives an equipment design advantage. State-of-the-art protection for 500 volt equipment. Ultra compact sizes allow down-sizing of existing equipment.
Applications
Protection of 500 volts or less solid state equipment such as motor drives, UPS, inverters, etc.
Ordering Information
LA 50 QS 250 -4
Littelfuse
Special Purpose Fuses
Voltage
(500)
Style Ampere Rating
Mounting Type
(Blades/Bolt-in)
Specifications
Voltage Rating: Interrupting Rating: Ampere Range: Approvals: AC: 500 volts DC: 500 volts AC: 200,000 Amperes DC: 100,000 Amperes 35 – 1200 Amperes UL Recognized under the components program CSA Certified.
92
www.littelfuse.com
© 2005 Littelfuse • POWR-GARD™ Products Catalog
Special Purpose Fuses
LA50QS Semiconductor Fuses
500 VAC • Very Fast Acting • 35 – 1200 Amperes
Catalog Numbers & Technical Data
A mpere Rating 35 40 50 60 70 80 90 100 125 150 175 200 225 Littelfuse Catalog Number LA50QS35-4 LA50QS40-4 LA50QS50-4 LA50QS60-4 LA50QS70-4 LA50QS80-4 LA50QS90-4 LA50QS100-4 LA50QS125-4 LA50QS150-4 LA50QS175-4 LA50QS200-4 LA50QS225-4 Maximum Mounting Clearing I2 t @500 Type VAC (A 2S x 10 3) 4 4 4 4 4 4 4 4 4 4 4 4 4 0.56 0.69 1.1 1.8 1.9 2.6 3.6 4.4 5.6 9 15 20 25 Watts Loss @ Rated Current (W) 6 7 8 10 12 14 15 17 21 25 29 33 37 Ampere Rating 250 300 350 400 450 500 600 700 800 900 1000 1200 Littelfuse Catalog Number LA50QS250-4 LA50QS300-4 LA50QS350-4 LA50QS400-4 LA50QS450-4 LA50QS500-4 LA50QS600-4 LA50QS700-4 LA50QS800-4 LA50QS900-4 LA50QS1000-4 LA50QS1200-4 Maximum Mounting Clearing I2 t @500 Type VAC (A 2S x 10 3) 4 4 4 4 4 4 4 4 4 4 4 4 29 55 88 98 130 160 220 270 360 500 560 930 Watts Loss @ Rated Current (W) 41 49 57 65 69 77 92 110 130 140 160 175
Special Purpose Fuses
Dimensions
Amperes 35 – 100 125 – 200 225 – 400 450 – 600 700 – 800 900 – 1200 Mount. Type 4 4 4 4 4 4 Dimensions in Inches (mm in parentheses) A 3.63 (92.2) 3.63 (92.2) 4.34 (110) 4.47 (114) 6.47 (164.3) 6.97 (177.0) B 1.00 (25.4) 1.22 (31.0) 1.50 (38.1) 2.00 (50.8) 2.50 (63.5) 3.00 (76.2) C 2.13 (54.1) 2.13 (54.1) 2.09 (53.1) 2.22 (56.4) 2.22 (56.4) 3.22 (81.8) D 2.94 (74.7) 2.94 (74.7) 3.41 (86.6) 3.53 (89.7) 5.00 (127.0) 5.47 (138.9) E 2.75 (69.9) 2.81 (71.4) 2.78 (70.6) 2.91 (73.9) 3.44 (87.3) 4.47 (113.5) F 0.31 (7.9) 0.31 (7.9) 0.41 (10.4) 0.41 (10.4) 0.53 (13.5) 0.63 (15.9)
Dimensions for reference only. G 0.75 (19.1) 1.00 (25.4) 1.00 (25.4) 1.50 (38.1) 1.50 (38.1) 2.38 (60.3) H 0.13 (3.3) 0.19 (4.8) 0.25 (6.4) 0.25 (6.4) 0.25 (6.4) 0.44 (11.1)
Contact Littelfuse for characteristic curves.
© 2005 Littelfuse • POWR-GARD™ Products Catalog
www.littelfuse.com
93
很抱歉,暂时无法提供与“LA50QS70-4”相匹配的价格&库存,您可以联系我们找货
免费人工找货